JOSEPH DANIEL
I build and validate defensive security capabilities through controlled adversary activity, detection engineering, incident investigation and cloud security research.
Security through continuous validation.
BELISARIUS13 uses controlled adversary activity to expose visibility gaps, validate detections, strengthen investigation workflows and prove that defensive changes work under retest.
Purple Team Engineering
The lab combines offensive validation and defensive engineering rather than treating them as separate disciplines.
Adversary Emulation
Execute controlled MITRE ATT&CK-aligned techniques to evaluate telemetry, security controls and detection coverage.
Detection Engineering
Develop, test and tune high-signal detections using endpoint, network and cloud telemetry.
Incident Response & DFIR
Investigate suspicious activity through evidence collection, timeline reconstruction, root-cause analysis and remediation.
Azure Security
Validate identity, workload, posture, logging and cloud security controls across Microsoft Azure environments.
Secure Purple Team Portfolio Platform
Building the infrastructure behind BELISARIUS13 as a security engineering project rather than treating the portfolio as a simple static website.
Design, deploy and harden a reproducible cybersecurity portfolio platform using secure source control, CI/CD, DNS, TLS and infrastructure security principles.
Build. Attack. Observe. Improve.
The lab documents practical security engineering across adversary emulation, detection engineering, incident response, network analysis and Azure security.